Oxygen cut-off for hydrocarbon-vapor lamps.



. Nd.'668,'455. Patented Feb. I9, 1901.

x w. s. (IUIGLEY. OXYGENCUT-OFF FOR HYDROCABBON VAPOR LAMPS.

(Application filed Aug. 10, 1900.,

(No Model) 511 vendor m: Ndnms mins 00 morouwm wAsnmo'roN. a, c

UNITED STATES PATENT UEETQE.

WIRT STANLEY QUIGLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO KITSON HYDRO-CARBON HEATING & INOANDESOENT LIGHTING GOM- PANY, OF SAME PLACE,

OXYGEN CUT-=OFF FOR HYDROCARBON-VAPOR LAMPS.

SPECIFICATION forming part of Letters Patent No. 668,45 5, dated February 19, 1901. Application filed August 10, 1900- Serial No. 26,519. (No model.)

To ctZZ whom, it may concern:

Be it known that I, WIRT STANLEY Quic- LEY, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented cer tain new and useful Improvements in Oxygen Cut-Ofis for Hydrocarbon-Vapor Lamps; and I do hereby declare that the followingis a full, clear, and exact description of the invention,

such as will enable others skilled in the art to which it apperlains to make and use the same.

The invention provides certain improvements in and connected with hydrocarbonlam ps.

The primary object of the invention is to provide a means to prevent flaming of the oil, which often accumulates in the globe and naturally is readily ignited by the mantles and is a common source of annoyance.

2o Broadly considered,it consists in means for cutting off the oxygen to cause the extinguishing of the flames.

The nature, characteristic features, and scope of my invention will be more fully un- 2 5 derstood from the following description/taken in connection with the accompanying drawings, forming part hereof, and in which- Figure l 'is asectional elevation of a hydrocarbon-lamp, showing one means of carrying my invention into practice, the same consisting of a pivotal lever having forked arms carrying movable ferrules, the latter constituting a duplex closure. Fig. 2 is an elevation showing the ferrules in their closed position.

Fig. 3 is an elevation of a chimney, partly broken away to disclose another means, same consisting of hinged leaves operated by a rack and pinion; and Fig. 4 is a detail showing a top plan view of the hinged leaves to illustrated in Fig. 3.

Referring to Figs. 1 and 2, A designates a hydrocarbon-lamp of the Kitson system, having chimney a, provided at its top with the gauze opening I) and at its bottom with the 5 apertured portion 0, constituting the oxygensupply, as usual. The chimney a has its lateral walls penetrated by pins (:1, which afford pivotal bearings for the forked arms e of a lever f. Each of said forked arms is provided with the obliquely -arranged links 9 h, to either side of their axes, and said links serve to sustain the ferrule members tj, constituting the respective closures for the oxygeninlet openings. The ferrules are slidably mounted upon the chimney and are of sufficient length to close the respective inlet-openings. The lever f may be provided with a chain It, and it will be apparent that when said lever is pulled down from its normal position, Fig. 1, to the position shown in Fig. 2 the ferrules t'j will be retracted and will operate to respectively close the gauze top a and perforated bottom 0.

In Fig. 3 I have shown a varied form of cutoff for closing the gauze top only. The same comprises two semicircular leaves t" j, which are properly mounted upon the pin L, so as to be capable of an upward swinging movement. The cut-off is shown in its closed position and as resting upon an annular ring or ledge 'm, provided for the purpose. The means for operating this type of damper or cutoff is shown as preferably consisting of a slotted rack-bar at, having a vertical movement upon the guide-pins 0, mounted in the side of the chimney. The rack-bar is provided at its top with two diverging armsp p, which bear, respectively, against the leaves 2" j. A pinion q is suitably mounted in the chimney in position to engage the rack-surface and is operated by an arm 0", as in Fig. 3, in the present instance through the medium of chains 3, two of which will be provided, one to raise and the other to lower the rack-bar.

As the cut-0E need be in operation but a moment or so in order to extinguish the flames, sufficient oxygen will be present to feed the burners, and they will burn fairly well until the cut-off is opened, when they will resume their usual luminancy. The cutoff extinguishes only the flames from the burning oil in the bottom of the lamp and not the light of the lamp. This may be accounted for by the fact that suflicient oxygen is present in the combustible mixture supplied to the incandescents to keep them glowing, while during the period the cut-01f is in action no oxygen can reach the burning oil,

which consequently must become extinguished.

It will be obvious to those skilled in the art to which my invention appertains that modifications may be made in detail without departing from the spirit thereof. Hence I do not limit myself to the precise construction and arrangement of parts hereinabove set forth, and illustrated in the accompanying drawings; but,

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a hydrocarbon-vapor lamp, the combination of a chimney having lateral air-passages, a device for closing said passages, and

an actuator for the device, movable in respect to the same, substantially as described.

2. In a hydrocarbon-vapor lamp, the combination of a chimney having lateral air-passages, ferrules slidably mounted upon the chimney and adapted for closing said passages, and mechanism, substantially as de- 

